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I have a plot of time series in ggplot2 package and I have performed the Moving average and I would like to add the result of moving average to the plot of time series. Sample of Data-set (p31): ambtemp dt -1.14 2007-09-29 00:01:57 -1.12 2007-09-29 00:03:57 -1.33 2007-09-29 00:05:57 -1.44 2007-09-29 00:07:57 -1.54 2007-09-29 00:09:57 -1.29 2007-09-29 00:11:57 Applied code for time series presentation: Require(ggplot2) library(scales) p29$dt=strptime(p31$dt, "%Y-%m-%d %H:%M:%S") ggplot(p29, aes(dt, ambtemp)) + geom_line() + scale_x_datetime(breaks = date_breaks("2 hour"),labels=date_format("%H:%M")) + xlab("Time 00.00 ~ 24:00 (2007-09-29)") + ylab("Tempreture")+ opts(title = ("Node 29")) Sample of time series presentation Sample of Moving average plot Sample of expected results The challenge is that time series data ov=btained from data-set which includes timestamps and temperature but Moving average data include just the average column and not the timestamps and fitting these two can cause inconsistency.

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